Categories
Maya VFX Fundamentals

Week 10: Face Animation Render in Maya and compositing in After Effects

In this class, we set up the lightning and colour corrected our model to get it ready to render and compositing later on After Effects.

To create the illumination of my scene, I wanted to recreate the real lighting of the scene I took as reference. I added 3 spotlights to my scene: one is in front of the model to illuminate the face, and the other two are behind as backlights.

Since the lip sync looked a bit odd without a tongue, I modelled one, added a standard surface material with some shiny highlights (to give a wet look) and animated it in the parts with ‘L’, ‘D’, ‘S’, and ‘T’ sounds.

Using the ‘Hypershade’ editor, I added two colour correct nodes: one linked to the base colour and coat of the skin material, and the second linked to the specular colour of the skin material. I added a soft yellowish base colour to the skin as is shown in the reference clip but then added a blue/purple highlight with the specular colour to make it a bit more interesting. I also added a subsurface scattering to make the skin a bit more translucent, so it looks more realistic. 

After I was happy with my lighting, I set my project render details to half resolution to have a relatively quick render to review the final look. Thankfully, I did not have to change anything as I like how it ended so I set my project at HD 1920×1080 resolution and render the final lip sync animation as an alpha.

Final render

The final render turned out to be good and it is ready for compositing with a background and some nice VFX. So I imported it to After Effects and searched for a proper background for the scene. I found this already blurred background with a futuristic look so I added it to the comp and colour corrected it to make it darker, more saturated and showing more blue hues (I added colour balance and brightness and contrast effects).

Then I also colour corrected the face as it seemed a little flat so using the ‘Levels’ effect increased the contrast and added a bit of more shadows and saturation.

Finally, I also scaled up the face and I scaled down the background towards to end to make the scene more dynamic and simulate the camera movement.

Final Comp

I think that the final scene turned out good, as I like the contrast between the blue/purple background, and the yellowish skin colour of the face with the subtle blue/purple highlights on the head and forehead. Overall, I think the scene looks realistic and the lip sync and head movements looks pretty natural.

References

topntp26, freepik. Blurred abstract background interior view looking out toward to empty office lobby and entrance doors and glass curtain wall with frame. [Online] Available at: Available at: https://www.freepik.com/free-photo/blurred-abstract-background-interior-view-looking-out-toward-empty-office-lobby-entrance-doors-glass-curtain-wall-with-frame_1254627.htm#query=building%20indoor&position=36&from_view=search&track=sph [Accessed 12 December 2022]

Categories
Maya VFX Fundamentals

Week 9: Speech Lip Sync in Maya

In this class, we learnt to synchronise the mouth and facial expressions of our face model with a short speech that we selected.

First, to capture a video from internet (YouTube) in this case to use it as a reference to build up our speech lip sync, we used ‘OBS Studio’. With this programme we can record the screen and sound of our computer’s desktop and then edit the length and export in the desired format in Adobe After Effects, or Adobe Premiere Pro. The sequence that I chose shows Charles Xavier talking to Magneto in X-Men Apocalypse (Movie Scenes, 2021).

Magneto’s Final Talk With Charles Xavier | X-Men Apocalypse (2016), (Movie Scenes, 2021)

Then, we imported it to Maya as an ‘Image Plane’. It is important to have set the timeline with the same fps (frames per second) to our clip, otherwise, it will not be in sync with the audio. In my case, I exported my clip at 30 fps so set Maya with the same value. To import the audio, we right click in the timeline and import it from there. If we want to preview the clip with the audio to double check that they are in sync, we can use ‘Playblast’ feature which will show a low-resolution preview. 

Once we had our reference clip set, we started to animate the mouth creating new targets in the blend shape previously created to fit the mouth shape to each sound of the speech. Then, using keyframing we set the exact movements we wanted and smooth them editing and adjusting the key frames in the ‘Graph Editor’. A useful reference to build the mouth shape depending on the sound of each syllable, I took as a reference an online image from Preston Blair Phoneme Series (Martin, 2018).

I did not create all the phonemes as not all of them were used and I actually blended 2 or 3 phonemes at the same time to create a different phoneme with this. I also animated the tongue, the eye brows, the jaw, the head rotate, and the neck (Addam’s apple). Below there is a sequence of screen captures of all the movements together and the targets that have been used.

I really enjoyed modelling and animating the facial expressions. I definitely need to improve and refine the animation part as some of the phonemes are not as polished as I would have liked but to be my first time animating a face and lip synching a speech I think it looks really good. I feel like this is an area that I would like to explore further.

References

Martin, G. C., 2018. Preston Blair phoneme series. [Online] Available at: http://www.garycmartin.com/mouth_shapes.html [Accessed 12 December 2022].

Movie Scenes, 2021. Magneto’s Final Talk With Charles Xavier | X-Men Apocalypse (2016). [Online] Available at: https://www.youtube.com/watch?v=1gZqgfiWDh4 [Accessed 28 November 2022].